java.lang.Object
- com.upokecenter.numbers.ERational

All Implemented Interfaces:

java.lang.Comparable<ERational>
```
public final class ERational
extends java.lang.Object
implements java.lang.Comparable<ERational>
```
Represents an arbitrary-precision rational number. This class can't be inherited. (The "E" stands for "extended", meaning that instances of this class can be values other than numbers proper, such as infinity and not-a-number.)
Thread safety: Instances of this class are immutable, so they are inherently safe for use by multiple threads. Multiple instances of this object with the same properties are interchangeable, so they should not be compared using the "==" operator (which might only check if each side of the operator is the same instance).

Field Summary

Fields
Modifier and Type	Field	Description
`static ERational`	`NaN`	A not-a-number value.
`static ERational`	`NegativeInfinity`	Negative infinity, less than any other number.
`static ERational`	`NegativeZero`	A rational number for negative zero.
`static ERational`	`One`	The rational number one.
`static ERational`	`PositiveInfinity`	Positive infinity, greater than any other number.
`static ERational`	`SignalingNaN`	A signaling not-a-number value.
`static ERational`	`Ten`	The rational number ten.
`static ERational`	`Zero`	A rational number for zero.

Constructor Summary

Constructors
Constructor Description

ERational(EInteger numerator, EInteger denominator)
Initializes a new instance of the ERational class.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method	Description
`ERational`	`Abs()`	Returns the absolute value of this rational number, that is, a number with the same value as this one but as a nonnegative number.
`ERational`	`Add(ERational otherValue)`	Adds two rational numbers.
`int`	`compareTo(ERational other)`	Compares an arbitrary-precision rational number with this instance.
`int`	`CompareToBinary(EFloat other)`	Compares an arbitrary-precision binary float with this instance.
`int`	`CompareToDecimal(EDecimal other)`	Compares an arbitrary-precision decimal number with this instance.
`int`	`CompareToTotal(ERational other)`	Compares the values of this object and another object, imposing a total ordering on all possible values.
`int`	`CompareToTotalMagnitude(ERational other)`	Compares the absolute values of this object and another object, imposing a total ordering on all possible values (ignoring their signs).
`ERational`	`Copy()`	Creates a copy of this arbitrary-precision rational number.
`ERational`	`CopySign(ERational other)`	Returns a number with the same value as this one, but copying the sign (positive or negative) of another number.
`static ERational`	`Create(int numeratorSmall, int denominatorSmall)`	Creates a rational number with the given numerator and denominator.
`static ERational`	`Create(EInteger numerator, EInteger denominator)`	Creates a rational number with the given numerator and denominator.
`static ERational`	`CreateNaN(EInteger diag)`	Creates a not-a-number arbitrary-precision rational number.
`static ERational`	`CreateNaN(EInteger diag, boolean signaling, boolean negative)`	Creates a not-a-number arbitrary-precision rational number.
`ERational`	`Divide(ERational otherValue)`	Divides this instance by the value of an arbitrary-precision rational number object.
`boolean`	`equals(ERational other)`	Determines whether this object's numerator, denominator, and properties are equal to those of another object.
`boolean`	`equals(java.lang.Object obj)`	Determines whether this object's numerator, denominator, and properties are equal to those of another object and that other object is an arbitrary-precision rational number.
`static ERational`	`FromBoolean(boolean boolValue)`	Converts a boolean value (true or false) to an arbitrary-precision rational number.
`static ERational`	`FromByte(byte inputByte)`	Converts a byte (from 0 to 255) to an arbitrary-precision rational number.
`static ERational`	`FromDouble(double flt)`	Converts a 64-bit floating-point number to a rational number.
`static ERational`	`FromEDecimal(EDecimal ef)`	Converts an arbitrary-precision decimal number to a rational number.
`static ERational`	`FromEFloat(EFloat ef)`	Converts an arbitrary-precision binary float to a rational number.
`static ERational`	`FromEInteger(EInteger bigint)`	Converts an arbitrary-precision integer to a rational number.
`static ERational`	`FromExtendedDecimal(EDecimal ef)`	Deprecated. Renamed to FromEDecimal.
`static ERational`	`FromExtendedFloat(EFloat ef)`	Deprecated. Renamed to FromEFloat.
`static ERational`	`FromInt16(short inputInt16)`	Converts a 16-bit signed integer to an arbitrary-precision rational number.
`static ERational`	`FromInt32(int inputInt32)`	Converts a 32-bit signed integer to an arbitrary-precision rational number.
`static ERational`	`FromInt64(long inputInt64)`	Converts a 64-bit signed integer to an arbitrary-precision rational number.
`static ERational`	`FromSingle(float flt)`	Converts a 32-bit binary floating-point number to a rational number.
`static ERational`	`FromString(java.lang.String str)`	Creates a rational number from a text string that represents a number.
`static ERational`	`FromString(java.lang.String str, int offset, int length)`	Creates a rational number from a text string that represents a number.
`EInteger`	`getDenominator()`	Gets this object's denominator.
`EInteger`	`getNumerator()`	Gets this object's numerator.
`EInteger`	`getUnsignedNumerator()`	Gets this object's numerator with the sign removed.
`int`	`hashCode()`	Returns the hash code for this instance.
`boolean`	`isFinite()`	Gets a value indicating whether this object is finite (not infinity or NaN).
`boolean`	`IsInfinity()`	Gets a value indicating whether this object's value is infinity.
`boolean`	`IsNaN()`	Returns whether this object is a not-a-number value.
`boolean`	`isNegative()`	Gets a value indicating whether this object's value is negative (including negative zero).
`boolean`	`IsNegativeInfinity()`	Returns whether this object is negative infinity.
`boolean`	`IsPositiveInfinity()`	Returns whether this object is positive infinity.
`boolean`	`IsQuietNaN()`	Returns whether this object is a quiet not-a-number value.
`boolean`	`IsSignalingNaN()`	Returns whether this object is a signaling not-a-number value (which causes an error if the value is passed to any arithmetic operation in this class).
`boolean`	`isZero()`	Gets a value indicating whether this object's value equals 0.
`ERational`	`Multiply(ERational otherValue)`	Multiplies this instance by the value of an arbitrary-precision rational number.
`ERational`	`Negate()`	Returns a rational number with the same value as this one but with the sign reversed.
`ERational`	`Remainder(ERational otherValue)`	Finds the remainder that results when this instance is divided by the value of an arbitrary-precision rational number.
`int`	`signum()`	Gets the sign of this rational number.
`ERational`	`Subtract(ERational otherValue)`	Subtracts an arbitrary-precision rational number from this instance.
`byte`	`ToByteChecked()`	Converts this number's value to a byte (from 0 to 255) if it can fit in a byte (from 0 to 255) after truncating to an integer.
`byte`	`ToByteIfExact()`	Converts this number's value to a byte (from 0 to 255) if it can fit in a byte (from 0 to 255) without rounding to a different numerical value.
`byte`	`ToByteUnchecked()`	Truncates this number's value to an integer and returns the least-significant bits of its two's-complement form as a byte (from 0 to 255).
`double`	`ToDouble()`	Converts this value to a 64-bit floating-point number.
`EDecimal`	`ToEDecimal()`	Converts this rational number to an arbitrary-precision decimal number.
`EDecimal`	`ToEDecimal(EContext ctx)`	Converts this rational number to an arbitrary-precision decimal number and rounds the result to the given precision.
`EDecimal`	`ToEDecimalExactIfPossible(EContext ctx)`	Converts this rational number to an arbitrary-precision decimal number, but if the result would have a nonterminating decimal expansion, rounds that result to the given precision.
`EFloat`	`ToEFloat()`	Converts this rational number to a binary float.
`EFloat`	`ToEFloat(EContext ctx)`	Converts this rational number to a binary float and rounds that result to the given precision.
`EFloat`	`ToEFloatExactIfPossible(EContext ctx)`	Converts this rational number to a binary float, but if the result would have a nonterminating binary expansion, rounds that result to the given precision.
`EInteger`	`ToEInteger()`	Converts this value to an arbitrary-precision integer.
`EInteger`	`ToEIntegerExact()`	Deprecated. Renamed to ToEIntegerIfExact.
`EInteger`	`ToEIntegerIfExact()`	Converts this value to an arbitrary-precision integer, checking whether the value is an exact integer.
`EDecimal`	`ToExtendedDecimal()`	Deprecated. Renamed to ToEDecimal.
`EDecimal`	`ToExtendedDecimal(EContext ctx)`	Deprecated. Renamed to ToEDecimal.
`EDecimal`	`ToExtendedDecimalExactIfPossible(EContext ctx)`	Deprecated. Renamed to ToEDecimalExactIfPossible.
`EFloat`	`ToExtendedFloat()`	Deprecated. Renamed to ToEFloat.
`EFloat`	`ToExtendedFloat(EContext ctx)`	Deprecated. Renamed to ToEFloat.
`EFloat`	`ToExtendedFloatExactIfPossible(EContext ctx)`	Deprecated. Renamed to ToEFloatExactIfPossible.
`short`	`ToInt16Checked()`	Converts this number's value to a 16-bit signed integer if it can fit in a 16-bit signed integer after truncating to an integer.
`short`	`ToInt16IfExact()`	Converts this number's value to a 16-bit signed integer if it can fit in a 16-bit signed integer without rounding to a different numerical value.
`short`	`ToInt16Unchecked()`	Truncates this number's value to an integer and returns the least-significant bits of its two's-complement form as a 16-bit signed integer.
`int`	`ToInt32Checked()`	Converts this number's value to a 32-bit signed integer if it can fit in a 32-bit signed integer after truncating to an integer.
`int`	`ToInt32IfExact()`	Converts this number's value to a 32-bit signed integer if it can fit in a 32-bit signed integer without rounding to a different numerical value.
`int`	`ToInt32Unchecked()`	Truncates this number's value to an integer and returns the least-significant bits of its two's-complement form as a 32-bit signed integer.
`long`	`ToInt64Checked()`	Converts this number's value to a 64-bit signed integer if it can fit in a 64-bit signed integer after truncating to an integer.
`long`	`ToInt64IfExact()`	Converts this number's value to a 64-bit signed integer if it can fit in a 64-bit signed integer without rounding to a different numerical value.
`long`	`ToInt64Unchecked()`	Truncates this number's value to an integer and returns the least-significant bits of its two's-complement form as a 64-bit signed integer.
`float`	`ToSingle()`	Converts this value to a 32-bit binary floating-point number.
`java.lang.String`	`toString()`	Converts this object to a text string.

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Field Detail
  - NaN
```
public static final ERational NaN
```
    A not-a-number value.
  - NegativeInfinity
```
public static final ERational NegativeInfinity
```
    Negative infinity, less than any other number.
  - NegativeZero
```
public static final ERational NegativeZero
```
    A rational number for negative zero.
  - One
```
public static final ERational One
```
    The rational number one.
  - PositiveInfinity
```
public static final ERational PositiveInfinity
```
    Positive infinity, greater than any other number.
  - SignalingNaN
```
public static final ERational SignalingNaN
```
    A signaling not-a-number value.
  - Ten
```
public static final ERational Ten
```
    The rational number ten.
  - Zero
```
public static final ERational Zero
```
    A rational number for zero.
- Constructor Detail
  - ERational
```
public ERational(EInteger numerator,
                 EInteger denominator)
```
    Initializes a new instance of the ERational class.
    
    Parameters:
    
    numerator - The numerator.
    
    denominator - The denominator.
    
    Throws:
    
    java.lang.IllegalArgumentException - The denominator is zero.
    
    java.lang.NullPointerException - The parameter numerator or denominator is null.
- Method Detail
  - Copy
```
public ERational Copy()
```
    Creates a copy of this arbitrary-precision rational number.
    
    Returns:
    
    An arbitrary-precision binary rational number.
  - getDenominator
```
public final EInteger getDenominator()
```
    Gets this object's denominator.
    
    Returns:
    
    This object' s denominator.
  - isFinite
```
public final boolean isFinite()
```
    Gets a value indicating whether this object is finite (not infinity or NaN).
    
    Returns:
    
    true if this object is finite (not infinity or NaN); otherwise, false .
  - isNegative
```
public final boolean isNegative()
```
    Gets a value indicating whether this object's value is negative (including negative zero).
    
    Returns:
    
    true if this object's value is negative (including negative zero); otherwise, false . true if this object's value is negative; otherwise, false .
  - isZero
```
public final boolean isZero()
```
    Gets a value indicating whether this object's value equals 0.
    
    Returns:
    
    true if this object's value equals 0; otherwise, false . true if this object' s value equals 0; otherwise, . false .
  - getNumerator
```
public final EInteger getNumerator()
```
    Gets this object's numerator.
    
    Returns:
    
    This object' s numerator. If this object is a not-a-number value, returns the diagnostic information (which will be negative if this object is negative).
  - signum
```
public final int signum()
```
    Gets the sign of this rational number.
    
    Returns:
    
    The sign of this rational number.
  - getUnsignedNumerator
```
public final EInteger getUnsignedNumerator()
```
    Gets this object's numerator with the sign removed.
    
    Returns:
    
    This object's numerator. If this object is a not-a-number value, returns the diagnostic information.
  - Create
```
public static ERational Create(int numeratorSmall,
                               int denominatorSmall)
```
    Creates a rational number with the given numerator and denominator.
    
    Parameters:
    
    numeratorSmall - The numerator.
    
    denominatorSmall - The denominator.
    
    Returns:
    
    An arbitrary-precision binary rational number.
    
    Throws:
    
    java.lang.IllegalArgumentException - The denominator is zero.
  - Create
```
public static ERational Create(EInteger numerator,
                               EInteger denominator)
```
    Creates a rational number with the given numerator and denominator.
    
    Parameters:
    
    numerator - The numerator.
    
    denominator - The denominator.
    
    Returns:
    
    An arbitrary-precision binary rational number.
    
    Throws:
    
    java.lang.IllegalArgumentException - The denominator is zero.
  - CreateNaN
```
public static ERational CreateNaN(EInteger diag)
```
    Creates a not-a-number arbitrary-precision rational number.
    
    Parameters:
    
    diag - An integer, 0 or greater, to use as diagnostic information associated with this object. If none is needed, should be zero. To get the diagnostic information from another arbitrary-precision binary rational number, use that object's UnsignedNumerator property.
    
    Returns:
    
    An arbitrary-precision rational number.
    
    Throws:
    
    java.lang.IllegalArgumentException - The parameter "diag" is less than 0.
  - CreateNaN
```
public static ERational CreateNaN(EInteger diag,
                                  boolean signaling,
                                  boolean negative)
```
    Creates a not-a-number arbitrary-precision rational number.
    
    Parameters:
    
    diag - An integer, 0 or greater, to use as diagnostic information associated with this object. If none is needed, should be zero. To get the diagnostic information from another arbitrary-precision binary rational number, use that object's UnsignedNumerator property.
    
    signaling - Whether the return value will be signaling (true) or quiet (false).
    
    negative - Whether the return value is negative.
    
    Returns:
    
    An arbitrary-precision rational number.
    
    Throws:
    
    java.lang.IllegalArgumentException - The parameter "diag" is less than 0.
    
    java.lang.NullPointerException - The parameter "diag" is null.
  - FromDouble
```
public static ERational FromDouble(double flt)
```
    Converts a 64-bit floating-point number to a rational number. This method computes the exact value of the floating point number, not an approximation, as is often the case by converting the number to a string.
    
    Parameters:
    
    flt - The parameter flt is a 64-bit floating-point number.
    
    Returns:
    
    A rational number with the same value as "flt".
  - FromExtendedDecimal
```
@Deprecated
public static ERational FromExtendedDecimal(EDecimal ef)
```
    Deprecated.
    Renamed to FromEDecimal.
    
    Converts an arbitrary-precision decimal number to a rational number.
    
    Parameters:
    
    ef - The number to convert as an arbitrary-precision decimal number.
    
    Returns:
    
    An arbitrary-precision rational number.
  - FromExtendedFloat
```
@Deprecated
public static ERational FromExtendedFloat(EFloat ef)
```
    Deprecated.
    Renamed to FromEFloat.
    
    Converts an arbitrary-precision binary float to a rational number.
    
    Parameters:
    
    ef - The number to convert as an arbitrary-precision binary floating-point number.
    
    Returns:
    
    An arbitrary-precision rational number.
  - FromEDecimal
```
public static ERational FromEDecimal(EDecimal ef)
```
    Converts an arbitrary-precision decimal number to a rational number.
    
    Parameters:
    
    ef - The number to convert as an arbitrary-precision decimal number.
    
    Returns:
    
    An arbitrary-precision rational number.
    
    Throws:
    
    java.lang.NullPointerException - The parameter "ef" is null.
  - FromEFloat
```
public static ERational FromEFloat(EFloat ef)
```
    Converts an arbitrary-precision binary float to a rational number.
    
    Parameters:
    
    ef - The number to convert as an arbitrary-precision binary floating-point number.
    
    Returns:
    
    An arbitrary-precision rational number.
    
    Throws:
    
    java.lang.NullPointerException - The parameter "ef" is null.
  - FromEInteger
```
public static ERational FromEInteger(EInteger bigint)
```
    Converts an arbitrary-precision integer to a rational number.
    
    Parameters:
    
    bigint - The number to convert as an arbitrary-precision integer.
    
    Returns:
    
    The exact value of the integer as a rational number.
  - FromSingle
```
public static ERational FromSingle(float flt)
```
    Converts a 32-bit binary floating-point number to a rational number. This method computes the exact value of the floating point number, not an approximation, as is often the case by converting the number to a string.
    
    Parameters:
    
    flt - The parameter flt is a 32-bit binary floating-point number.
    
    Returns:
    
    A rational number with the same value as "flt".
  - FromString
```
public static ERational FromString(java.lang.String str)
```
    Creates a rational number from a text string that represents a number. See FromString(String, int, int) for more information.
    
    Parameters:
    
    str - A string that represents a number.
    
    Returns:
    
    An arbitrary-precision rational number with the same value as the given string.
    
    Throws:
    
    java.lang.NumberFormatException - The parameter "str" is not a correctly formatted number string.
  - FromString
```
public static ERational FromString(java.lang.String str,
                                   int offset,
                                   int length)
```
    Creates a rational number from a text string that represents a number.
    
    The format of the string generally consists of:
    
    An optional plus sign ("+" , U+002B) or minus sign ("-", U+002D) (if '-' , the value is negative.)
    
    The numerator in the form of one or more digits.
    
    Optionally, "/" followed by the denominator in the form of one or more digits. If a denominator is not given, it's equal to 1.
    
    The string can also be "-INF", "-Infinity", "Infinity", "INF", quiet NaN ("NaN" /"-NaN") followed by any number of digits, or signaling NaN ("sNaN" /"-sNaN") followed by any number of digits, all in any combination of upper and lower case.
    
    All characters mentioned above are the corresponding characters in the Basic Latin range. In particular, the digits must be the basic digits 0 to 9 (U + 0030 to U + 0039). The string is not allowed to contain white space characters, including spaces.
    Parameters:
    
    str - A text string, a portion of which represents a number.
    
    offset - A zero-based index showing where the desired portion of str begins.
    
    length - The length, in code units, of the desired portion of str (but not more than str 's length).
    
    Returns:
    
    An arbitrary-precision rational number.
    
    Throws:
    
    java.lang.NumberFormatException - The parameter "str" is not a correctly formatted number string.
    
    java.lang.NullPointerException - The parameter "str" is null.
  - CompareToTotalMagnitude
```
public int CompareToTotalMagnitude(ERational other)
```
    Compares the absolute values of this object and another object, imposing a total ordering on all possible values (ignoring their signs). In this method:
    
    For objects with the same value, the one with the higher denominator has a greater "absolute value".
    
    Negative zero and positive zero are considered equal.
    
    Quiet NaN has a higher "absolute value" than signaling NaN. If both objects are quiet NaN or both are signaling NaN, the one with the higher diagnostic information has a greater "absolute value".
    
    NaN has a higher "absolute value" than infinity.
    
    Infinity has a higher "absolute value" than any finite number.
    Parameters:
    
    other - An arbitrary-precision rational number to compare with this one.
    
    Returns:
    
    The number 0 if both objects have the same value, or -1 if this object is less than the other value, or 1 if this object is greater.
  - CompareToTotal
```
public int CompareToTotal(ERational other)
```
    Compares the values of this object and another object, imposing a total ordering on all possible values. In this method:
    
    For objects with the same value, the one with the higher denominator has a greater "absolute value".
    
    Negative zero is less than positive zero.
    
    Quiet NaN has a higher "absolute value" than signaling NaN. If both objects are quiet NaN or both are signaling NaN, the one with the higher diagnostic information has a greater "absolute value".
    
    NaN has a higher "absolute value" than infinity.
    
    Infinity has a higher "absolute value" than any finite number.
    
    Negative numbers are less than positive numbers.
    Parameters:
    
    other - An arbitrary-precision rational number to compare with this one.
    
    Returns:
    
    The number 0 if both objects have the same value, or -1 if this object is less than the other value, or 1 if this object is greater.
  - Abs
```
public ERational Abs()
```
    Returns the absolute value of this rational number, that is, a number with the same value as this one but as a nonnegative number.
    
    Returns:
    
    An arbitrary-precision binary rational number.
  - Add
```
public ERational Add(ERational otherValue)
```
    Adds two rational numbers.
    
    Parameters:
    
    otherValue - Another arbitrary-precision rational number.
    
    Returns:
    
    The sum of the two numbers. Returns not-a-number (NaN) if either operand is NaN.
    
    Throws:
    
    java.lang.NullPointerException - The parameter "otherValue" is null.
  - compareTo
```
public int compareTo(ERational other)
```
    Compares an arbitrary-precision rational number with this instance.
    
    Specified by:
    
    compareTo in interface java.lang.Comparable<ERational>
    
    Parameters:
    
    other - An arbitrary-precision rational number.
    
    Returns:
    
    Zero if the values are equal; a negative number if this instance is less, or a positive number if this instance is greater.
    
    Throws:
    
    java.lang.IllegalArgumentException - Doesn't satisfy this.isFinite(); doesn't satisfy other.isFinite().
  - CompareToBinary
```
public int CompareToBinary(EFloat other)
```
    Compares an arbitrary-precision binary float with this instance.
    
    Parameters:
    
    other - An arbitrary-precision binary floating-point number.
    
    Returns:
    
    Zero if the values are equal; a negative number if this instance is less, or a positive number if this instance is greater.
    
    Throws:
    
    java.lang.IllegalArgumentException - Doesn't satisfy this.isFinite(); doesn't satisfy other.isFinite().
  - CompareToDecimal
```
public int CompareToDecimal(EDecimal other)
```
    Compares an arbitrary-precision decimal number with this instance.
    
    Parameters:
    
    other - An arbitrary-precision decimal number.
    
    Returns:
    
    Zero if the values are equal; a negative number if this instance is less, or a positive number if this instance is greater.
    
    Throws:
    
    java.lang.IllegalArgumentException - Doesn't satisfy this.isFinite(); doesn't satisfy other.isFinite().
  - CopySign
```
public ERational CopySign(ERational other)
```
    Returns a number with the same value as this one, but copying the sign (positive or negative) of another number.
    
    Parameters:
    
    other - A number whose sign will be copied.
    
    Returns:
    
    An arbitrary-precision rational number.
    
    Throws:
    
    java.lang.NullPointerException - The parameter "other" is null.
  - Divide
```
public ERational Divide(ERational otherValue)
```
    Divides this instance by the value of an arbitrary-precision rational number object.
    
    Parameters:
    
    otherValue - An arbitrary-precision rational number.
    
    Returns:
    
    The quotient of the two objects.
    
    Throws:
    
    java.lang.NullPointerException - The parameter "otherValue" is null.
  - equals
```
public boolean equals(java.lang.Object obj)
```
    Determines whether this object's numerator, denominator, and properties are equal to those of another object and that other object is an arbitrary-precision rational number. Not-a-number values are considered equal if the rest of their properties are equal.
    
    Overrides:
    
    equals in class java.lang.Object
    
    Parameters:
    
    obj - The parameter obj is an arbitrary object.
    
    Returns:
    
    true if the objects are equal; otherwise, false .
  - equals
```
public boolean equals(ERational other)
```
    Determines whether this object's numerator, denominator, and properties are equal to those of another object. Not-a-number values are considered equal if the rest of their properties are equal.
    
    Parameters:
    
    other - An arbitrary-precision rational number to compare to.
    
    Returns:
    
    Either true or false .
  - hashCode
```
public int hashCode()
```
    Returns the hash code for this instance. No application or process IDs are used in the hash code calculation.
    
    Overrides:
    
    hashCode in class java.lang.Object
    
    Returns:
    
    A 32-bit signed integer.
  - IsInfinity
```
public boolean IsInfinity()
```
    Gets a value indicating whether this object's value is infinity.
    
    Returns:
    
    true if this object's value is infinity; otherwise, false .
  - IsNaN
```
public boolean IsNaN()
```
    Returns whether this object is a not-a-number value.
    
    Returns:
    
    true if this object is a not-a-number value; otherwise, false .
  - IsNegativeInfinity
```
public boolean IsNegativeInfinity()
```
    Returns whether this object is negative infinity.
    
    Returns:
    
    true if this object is negative infinity; otherwise, false .
  - IsPositiveInfinity
```
public boolean IsPositiveInfinity()
```
    Returns whether this object is positive infinity.
    
    Returns:
    
    true if this object is positive infinity; otherwise, false .
  - IsQuietNaN
```
public boolean IsQuietNaN()
```
    Returns whether this object is a quiet not-a-number value.
    
    Returns:
    
    true if this object is a quiet not-a-number value; otherwise, false .
  - IsSignalingNaN
```
public boolean IsSignalingNaN()
```
    Returns whether this object is a signaling not-a-number value (which causes an error if the value is passed to any arithmetic operation in this class).
    
    Returns:
    
    true if this object is a signaling not-a-number value (which causes an error if the value is passed to any arithmetic operation in this class); otherwise, false .
  - Multiply
```
public ERational Multiply(ERational otherValue)
```
    Multiplies this instance by the value of an arbitrary-precision rational number.
    
    Parameters:
    
    otherValue - An arbitrary-precision rational number.
    
    Returns:
    
    The product of the two numbers.
    
    Throws:
    
    java.lang.NullPointerException - The parameter "otherValue" is null.
  - Negate
```
public ERational Negate()
```
    Returns a rational number with the same value as this one but with the sign reversed.
    
    Returns:
    
    An arbitrary-precision binary rational number.
  - Remainder
```
public ERational Remainder(ERational otherValue)
```
    Finds the remainder that results when this instance is divided by the value of an arbitrary-precision rational number.
    
    Parameters:
    
    otherValue - An arbitrary-precision rational number.
    
    Returns:
    
    The remainder of the two numbers.
    
    Throws:
    
    java.lang.NullPointerException - The parameter "otherValue" is null.
  - Subtract
```
public ERational Subtract(ERational otherValue)
```
    Subtracts an arbitrary-precision rational number from this instance.
    
    Parameters:
    
    otherValue - An arbitrary-precision rational number.
    
    Returns:
    
    The difference of the two objects.
    
    Throws:
    
    java.lang.NullPointerException - The parameter "otherValue" is null.
  - ToDouble
```
public double ToDouble()
```
    Converts this value to a 64-bit floating-point number. The half-even rounding mode is used.
    
    Returns:
    
    The closest 64-bit floating-point number to this value. The return value can be positive infinity or negative infinity if this value exceeds the range of a 64-bit floating point number.
  - ToEInteger
```
public EInteger ToEInteger()
```
    Converts this value to an arbitrary-precision integer. Any fractional part in this value will be discarded when converting to an arbitrary-precision integer.
    
    Returns:
    
    An arbitrary-precision integer.
    
    Throws:
    
    java.lang.ArithmeticException - This object's value is infinity or not-a-number (NaN).
  - ToEIntegerExact
```
@Deprecated
public EInteger ToEIntegerExact()
```
    Deprecated.
    Renamed to ToEIntegerIfExact.
    
    Converts this value to an arbitrary-precision integer, checking whether the value is an exact integer.
    
    Returns:
    
    An arbitrary-precision integer.
    
    Throws:
    
    java.lang.ArithmeticException - This object's value is infinity or not-a-number (NaN).
  - ToEIntegerIfExact
```
public EInteger ToEIntegerIfExact()
```
    Converts this value to an arbitrary-precision integer, checking whether the value is an exact integer.
    
    Returns:
    
    An arbitrary-precision integer.
    
    Throws:
    
    java.lang.ArithmeticException - This object's value is infinity or not-a-number (NaN).
  - ToEDecimal
```
public EDecimal ToEDecimal()
```
    Converts this rational number to an arbitrary-precision decimal number.
    
    Returns:
    
    The exact value of the rational number, or not-a-number (NaN) if the result can't be exact because it has a nonterminating decimal expansion.
  - ToEDecimal
```
public EDecimal ToEDecimal(EContext ctx)
```
    Converts this rational number to an arbitrary-precision decimal number and rounds the result to the given precision.
    
    Parameters:
    
    ctx - An arithmetic context object to control the precision, rounding, and exponent range of the result. If HasFlags of the context is true, will also store the flags resulting from the operation (the flags are in addition to the pre-existing flags). Can be null, in which case the precision is unlimited and no rounding is needed.
    
    Returns:
    
    The value of the rational number, rounded to the given precision. Returns not-a-number (NaN) if the context is null and the result can't be exact because it has a nonterminating decimal expansion.
  - ToEDecimalExactIfPossible
```
public EDecimal ToEDecimalExactIfPossible(EContext ctx)
```
    Converts this rational number to an arbitrary-precision decimal number, but if the result would have a nonterminating decimal expansion, rounds that result to the given precision.
    
    Parameters:
    
    ctx - An arithmetic context object to control the precision, rounding, and exponent range of the result. This context will be used only if the exact result would have a nonterminating decimal expansion. If HasFlags of the context is true, will also store the flags resulting from the operation (the flags are in addition to the pre-existing flags). Can be null, in which case the precision is unlimited and no rounding is needed.
    
    Returns:
    
    The exact value of the rational number if possible; otherwise, the rounded version of the result if a context is given. Returns not-a-number (NaN) if the context is null and the result can't be exact because it has a nonterminating decimal expansion.
  - ToExtendedDecimal
```
@Deprecated
public EDecimal ToExtendedDecimal()
```
    Deprecated.
    Renamed to ToEDecimal.
    
    Converts this rational number to an arbitrary-precision decimal number.
    
    Returns:
    
    The exact value of the rational number, or not-a-number (NaN) if the result can't be exact because it has a nonterminating decimal expansion.
  - ToExtendedDecimal
```
@Deprecated
public EDecimal ToExtendedDecimal(EContext ctx)
```
    Deprecated.
    Renamed to ToEDecimal.
    
    Converts this rational number to an arbitrary-precision decimal number and rounds the result to the given precision.
    
    Parameters:
    
    ctx - An arithmetic context object to control the precision, rounding, and exponent range of the result. If HasFlags of the context is true, will also store the flags resulting from the operation (the flags are in addition to the pre-existing flags). Can be null, in which case the precision is unlimited and no rounding is needed.
    
    Returns:
    
    The value of the rational number, rounded to the given precision. Returns not-a-number (NaN) if the context is null and the result can't be exact because it has a nonterminating decimal expansion.
  - ToExtendedDecimalExactIfPossible
```
@Deprecated
public EDecimal ToExtendedDecimalExactIfPossible(EContext ctx)
```
    Deprecated.
    Renamed to ToEDecimalExactIfPossible.
    
    Converts this rational number to an arbitrary-precision decimal number, but if the result would have a nonterminating decimal expansion, rounds that result to the given precision.
    
    Parameters:
    
    ctx - An arithmetic context object to control the precision, rounding, and exponent range of the result. This context will be used only if the exact result would have a nonterminating decimal expansion. If HasFlags of the context is true, will also store the flags resulting from the operation (the flags are in addition to the pre-existing flags). Can be null, in which case the precision is unlimited and no rounding is needed.
    
    Returns:
    
    The exact value of the rational number if possible; otherwise, the rounded version of the result if a context is given. Returns not-a-number (NaN) if the context is null and the result can't be exact because it has a nonterminating decimal expansion.
  - ToEFloat
```
public EFloat ToEFloat()
```
    Converts this rational number to a binary float.
    
    Returns:
    
    The exact value of the rational number, or not-a-number (NaN) if the result can't be exact because it has a nonterminating binary expansion.
  - ToEFloat
```
public EFloat ToEFloat(EContext ctx)
```
    Converts this rational number to a binary float and rounds that result to the given precision.
    
    Parameters:
    
    ctx - An arithmetic context object to control the precision, rounding, and exponent range of the result. If HasFlags of the context is true, will also store the flags resulting from the operation (the flags are in addition to the pre-existing flags). Can be null, in which case the precision is unlimited and no rounding is needed.
    
    Returns:
    
    The value of the rational number, rounded to the given precision. Returns not-a-number (NaN) if the context is null and the result can't be exact because it has a nonterminating binary expansion.
  - ToEFloatExactIfPossible
```
public EFloat ToEFloatExactIfPossible(EContext ctx)
```
    Converts this rational number to a binary float, but if the result would have a nonterminating binary expansion, rounds that result to the given precision.
    
    Parameters:
    
    ctx - An arithmetic context object to control the precision, rounding, and exponent range of the result. This context will be used only if the exact result would have a nonterminating binary expansion. If HasFlags of the context is true, will also store the flags resulting from the operation (the flags are in addition to the pre-existing flags). Can be null, in which case the precision is unlimited and no rounding is needed.
    
    Returns:
    
    The exact value of the rational number if possible; otherwise, the rounded version of the result if a context is given. Returns not-a-number (NaN) if the context is null and the result can't be exact because it has a nonterminating binary expansion.
  - ToExtendedFloat
```
@Deprecated
public EFloat ToExtendedFloat()
```
    Deprecated.
    Renamed to ToEFloat.
    
    Converts this rational number to a binary float.
    
    Returns:
    
    The exact value of the rational number, or not-a-number (NaN) if the result can't be exact because it has a nonterminating binary expansion.
  - ToExtendedFloat
```
@Deprecated
public EFloat ToExtendedFloat(EContext ctx)
```
    Deprecated.
    Renamed to ToEFloat.
    
    Converts this rational number to a binary float and rounds that result to the given precision.
    
    Parameters:
    
    ctx - An arithmetic context object to control the precision, rounding, and exponent range of the result. If HasFlags of the context is true, will also store the flags resulting from the operation (the flags are in addition to the pre-existing flags). Can be null, in which case the precision is unlimited and no rounding is needed.
    
    Returns:
    
    The value of the rational number, rounded to the given precision. Returns not-a-number (NaN) if the context is null and the result can't be exact because it has a nonterminating binary expansion.
  - ToExtendedFloatExactIfPossible
```
@Deprecated
public EFloat ToExtendedFloatExactIfPossible(EContext ctx)
```
    Deprecated.
    Renamed to ToEFloatExactIfPossible.
    
    Converts this rational number to a binary float, but if the result would have a nonterminating binary expansion, rounds that result to the given precision.
    
    Parameters:
    
    ctx - An arithmetic context object to control the precision, rounding, and exponent range of the result. This context will be used only if the exact result would have a nonterminating binary expansion. If HasFlags of the context is true, will also store the flags resulting from the operation (the flags are in addition to the pre-existing flags). Can be null, in which case the precision is unlimited and no rounding is needed.
    
    Returns:
    
    The exact value of the rational number if possible; otherwise, the rounded version of the result if a context is given. Returns not-a-number (NaN) if the context is null and the result can't be exact because it has a nonterminating binary expansion.
  - ToSingle
```
public float ToSingle()
```
    Converts this value to a 32-bit binary floating-point number. The half-even rounding mode is used.
    
    Returns:
    
    The closest 32-bit binary floating-point number to this value. The return value can be positive infinity or negative infinity if this value exceeds the range of a 32-bit floating point number.
  - toString
```
public java.lang.String toString()
```
    Converts this object to a text string.
    
    Overrides:
    
    toString in class java.lang.Object
    
    Returns:
    
    A string representation of this object. If this object's value is infinity or not-a-number, the result is the analogous return value of the EDecimal.toString method. Otherwise, the return value has the following form: [-]numerator/denominator .
  - ToByteChecked
```
public byte ToByteChecked()
```
    Converts this number's value to a byte (from 0 to 255) if it can fit in a byte (from 0 to 255) after truncating to an integer.
    
    Returns:
    
    This number's value, truncated to a byte (from 0 to 255).
    
    Throws:
    
    java.lang.ArithmeticException - This value is infinity or not-a-number, or the truncated integer is less than 0 or greater than 255.
  - ToByteUnchecked
```
public byte ToByteUnchecked()
```
    Truncates this number's value to an integer and returns the least-significant bits of its two's-complement form as a byte (from 0 to 255).
    
    Returns:
    
    This number, converted to a byte (from 0 to 255). Returns 0 if this value is infinity or not-a-number.
  - ToByteIfExact
```
public byte ToByteIfExact()
```
    Converts this number's value to a byte (from 0 to 255) if it can fit in a byte (from 0 to 255) without rounding to a different numerical value.
    
    Returns:
    
    This number's value as a byte (from 0 to 255).
    
    Throws:
    
    java.lang.ArithmeticException - This value is infinity or not-a-number, is not an exact integer, or is less than 0 or greater than 255.
  - FromByte
```
public static ERational FromByte(byte inputByte)
```
    Converts a byte (from 0 to 255) to an arbitrary-precision rational number.
    
    Parameters:
    
    inputByte - The number to convert as a byte (from 0 to 255).
    
    Returns:
    
    This number's value as an arbitrary-precision rational number.
  - ToInt16Checked
```
public short ToInt16Checked()
```
    Converts this number's value to a 16-bit signed integer if it can fit in a 16-bit signed integer after truncating to an integer.
    
    Returns:
    
    This number's value, truncated to a 16-bit signed integer.
    
    Throws:
    
    java.lang.ArithmeticException - This value is infinity or not-a-number, or the truncated integer is less than -32768 or greater than 32767.
  - ToInt16Unchecked
```
public short ToInt16Unchecked()
```
    Truncates this number's value to an integer and returns the least-significant bits of its two's-complement form as a 16-bit signed integer.
    
    Returns:
    
    This number, converted to a 16-bit signed integer. Returns 0 if this value is infinity or not-a-number.
  - ToInt16IfExact
```
public short ToInt16IfExact()
```
    Converts this number's value to a 16-bit signed integer if it can fit in a 16-bit signed integer without rounding to a different numerical value.
    
    Returns:
    
    This number's value as a 16-bit signed integer.
    
    Throws:
    
    java.lang.ArithmeticException - This value is infinity or not-a-number, is not an exact integer, or is less than -32768 or greater than 32767.
  - FromInt16
```
public static ERational FromInt16(short inputInt16)
```
    Converts a 16-bit signed integer to an arbitrary-precision rational number.
    
    Parameters:
    
    inputInt16 - The number to convert as a 16-bit signed integer.
    
    Returns:
    
    This number's value as an arbitrary-precision rational number.
  - ToInt32Checked
```
public int ToInt32Checked()
```
    Converts this number's value to a 32-bit signed integer if it can fit in a 32-bit signed integer after truncating to an integer.
    
    Returns:
    
    This number's value, truncated to a 32-bit signed integer.
    
    Throws:
    
    java.lang.ArithmeticException - This value is infinity or not-a-number, or the truncated integer is less than -2147483648 or greater than 2147483647.
  - ToInt32Unchecked
```
public int ToInt32Unchecked()
```
    Truncates this number's value to an integer and returns the least-significant bits of its two's-complement form as a 32-bit signed integer.
    
    Returns:
    
    This number, converted to a 32-bit signed integer. Returns 0 if this value is infinity or not-a-number.
  - ToInt32IfExact
```
public int ToInt32IfExact()
```
    Converts this number's value to a 32-bit signed integer if it can fit in a 32-bit signed integer without rounding to a different numerical value.
    
    Returns:
    
    This number's value as a 32-bit signed integer.
    
    Throws:
    
    java.lang.ArithmeticException - This value is infinity or not-a-number, is not an exact integer, or is less than -2147483648 or greater than 2147483647.
  - FromBoolean
```
public static ERational FromBoolean(boolean boolValue)
```
    Converts a boolean value (true or false) to an arbitrary-precision rational number.
    
    Parameters:
    
    boolValue - Either true or false.
    
    Returns:
    
    The number 1 if boolValue is true; otherwise, 0.
  - FromInt32
```
public static ERational FromInt32(int inputInt32)
```
    Converts a 32-bit signed integer to an arbitrary-precision rational number.
    
    Parameters:
    
    inputInt32 - The number to convert as a 32-bit signed integer.
    
    Returns:
    
    This number's value as an arbitrary-precision rational number.
  - ToInt64Checked
```
public long ToInt64Checked()
```
    Converts this number's value to a 64-bit signed integer if it can fit in a 64-bit signed integer after truncating to an integer.
    
    Returns:
    
    This number's value, truncated to a 64-bit signed integer.
    
    Throws:
    
    java.lang.ArithmeticException - This value is infinity or not-a-number, or the truncated integer is less than -9223372036854775808 or greater than 9223372036854775807.
  - ToInt64Unchecked
```
public long ToInt64Unchecked()
```
    Truncates this number's value to an integer and returns the least-significant bits of its two's-complement form as a 64-bit signed integer.
    
    Returns:
    
    This number, converted to a 64-bit signed integer. Returns 0 if this value is infinity or not-a-number.
  - ToInt64IfExact
```
public long ToInt64IfExact()
```
    Converts this number's value to a 64-bit signed integer if it can fit in a 64-bit signed integer without rounding to a different numerical value.
    
    Returns:
    
    This number's value as a 64-bit signed integer.
    
    Throws:
    
    java.lang.ArithmeticException - This value is infinity or not-a-number, is not an exact integer, or is less than -9223372036854775808 or greater than 9223372036854775807.
  - FromInt64
```
public static ERational FromInt64(long inputInt64)
```
    Converts a 64-bit signed integer to an arbitrary-precision rational number.
    
    Parameters:
    
    inputInt64 - The number to convert as a 64-bit signed integer.
    
    Returns:
    
    This number's value as an arbitrary-precision rational number.

Class ERational

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

NaN

NegativeInfinity

NegativeZero

One

PositiveInfinity

SignalingNaN

Ten

Zero

Constructor Detail

ERational

Method Detail

Copy

getDenominator

isFinite

isNegative

isZero

getNumerator

signum

getUnsignedNumerator

Create

Create

CreateNaN

CreateNaN

FromDouble

FromExtendedDecimal

FromExtendedFloat

FromEDecimal

FromEFloat

FromEInteger

FromSingle

FromString

FromString

CompareToTotalMagnitude

CompareToTotal

Abs

Add

compareTo

CompareToBinary

CompareToDecimal

CopySign

Divide

equals

equals

hashCode

IsInfinity

IsNaN

IsNegativeInfinity

IsPositiveInfinity

IsQuietNaN

IsSignalingNaN

Multiply

Negate

Remainder

Subtract

ToDouble

ToEInteger

ToEIntegerExact

ToEIntegerIfExact

ToEDecimal

ToEDecimal

ToEDecimalExactIfPossible

ToExtendedDecimal

ToExtendedDecimal

ToExtendedDecimalExactIfPossible

ToEFloat

ToEFloat

ToEFloatExactIfPossible

ToExtendedFloat

ToExtendedFloat

ToExtendedFloatExactIfPossible

ToSingle

toString

ToByteChecked

ToByteUnchecked